Bently Nevada 126623-01
Bently Nevada 126623-01
Bently Nevada 126623-01
Bently Nevada 126623-01
Bently Nevada 126623-01
Bently Nevada 126623-01
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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power sources hard-to-find, obsolete Bently Nevada components, enabling you to maintain your existing Aero GT infrastructure without the need for costly full-system upgrades.

126623-01

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Bently Nevada 126623-01 provides the interface between Aero GT vibration monitoring systems and field-mounted sensors, enabling accurate collection and processing of turbine vibration and Keyphasor signals.
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Technical specifications for 126623-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    126623-01
  • Product Family:
    3500 System
  • Product Type:
    Aero GT I/O Module External Termination
  • Stock:
    3
  • Rack Space Requirements:
    1 full-height front slot.
  • Aero GT I/O:
    Greater than 95 kΩ
  • Power Consumption:
    7.7 watts typical
  • Operating temperature:
    -30°C to +65°C (-22°F to +150°F)
  • Storage temperature:
    -40°C to +85°C (-40°F to +185°F)
  • Humidity:
    95%, noncondensing
  • Weight:
    0.38 kg
  • Estimated shipping dimensions:
    2.5x11x24cm
  • Tariff Code:
    3923500000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Interoperability Installation Application Scenarios

Features:

  • Supports up to four independent vibration monitoring channels with dual Keyphasor inputs for accurate speed and phase tracking.
  • External termination architecture improves field wiring accessibility and maintenance efficiency in complex installations.
  • Performs signal filtering and integration while providing buffered outputs with short-circuit protection for safe diagnostics and testing.
Bently Nevada 126623-01 plays an important role in machinery protection systems where accurate vibration monitoring is required to maintain equipment reliability. High-speed rotating assets such as aeroderivative gas turbines depend on continuous condition monitoring to detect abnormal operating conditions before equipment damage occurs. The module provides the interface needed to acquire critical vibration information from field sensors.

Within turbine monitoring applications, 126623-01 receives signals from velocity transducers, accelerometers, and Velomitor sensors installed on machinery casings and bearing locations. Signal conditioning functions help prepare raw vibration measurements for analysis while dual Keyphasor inputs support precise shaft rotational tracking. Such capabilities contribute to improved diagnostic accuracy for complex rotating equipment.

Bently Nevada 126623-01 is frequently deployed in power generation facilities, oil and gas installations, refineries, and pipeline compressor stations. With a typical power consumption of 7.7 watts, an Aero GT I/O input impedance greater than 95 kΩ, and operation across a wide industrial temperature range, the module delivers dependable performance in demanding environments where machinery availability and protection are critical operational priorities.

The 126623-01 Bently Nevada Aero GT I/O Module External Termination may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 126623-01 Aero GT I/O Module External Termination Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Bently Nevada 126623-01 Aero GT I/O Module External Termination Specs

General

  • Manufacturer Bently Nevada
  • Model 126623-01
  • Condition New Original ready stock
  • Product Family 140471-01,140482-01,169459-01
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Seamless Monitor Matching: Perfectly compatible with the 3500/44M aerospace-derived gas turbine core monitor.
  • Multi-Sensor Adaptation: Supports mixed input of speed sensors, high-frequency accelerometers, and Velomitor signals.
  • Seamless Keyphasor Signal Interoperability: Perfectly receives and processes two independent Keyphasor shaft speed phase data channels.
  • Fully Interconnected Backend Frames: Enables high-speed real-time data exchange with the main control card via the 3500 system backplane.
  • Interference-Free Sharing of Buffered Data: Supports front-end isolated buffered output and interoperability with portable vibration analyzers.
  • Rack Rear Slot Mounting: Mounted using a vertical sliding rail on the standard 3500 frame rear slot.
  • External Terminal Cable Connection: Connects to the external terminal block (ETB) via a dedicated high-shielded multi-core cable.
  • Hot-swappable module for on-site maintenance: Supports safe hardware insertion, removal, and replacement without system shutdown.
  • Flexible shielded grounding architecture: Provides independent signal ground and chassis ground terminals to eliminate common-mode interference in the field.
  • Vertical rail locking mechanism: Modules are equipped with dedicated mechanical fastening screws on both sides to ensure robustness in harsh environments.
  • Gas turbine casing vibration: Used for high-frequency vibration monitoring of aerospace-derived gas turbines such as the GE LM series.
  • Generator turbine rotor protection: Used in combined cycle power plants to monitor the axial and radial dynamics of turbine bearings.
  • Natural gas pipeline compressor monitoring: Provides mechanical protection for centrifugal compressors in long-distance pipeline pressurization stations.
  • Offshore platform power systems: Provides real-time online health diagnostics for generator sets on offshore oil and gas drilling platforms.
  • Large petrochemical units: Used for uninterrupted fault prevention of cracked gas compressors and key auxiliary equipment in petrochemical plants.
Description
Bently Nevada 126623-01 is an Aero GT I/O Module with External Termination designed for use within the 3500 machinery protection platform. Installed at the rear of the rack, the module acts as a connection bridge between field sensors and the monitoring system, allowing vibration data from critical rotating equipment to be collected and analyzed. The external termination configuration enhances wiring flexibility and simplifies field maintenance activities.

Supporting up to four independent acquisition channels, 126623-01 accepts input signals from velocity transducers, accelerometers, and Velomitor piezoelectric velocity sensors commonly used on aeroderivative gas turbines. The module performs signal conditioning functions including filtering and integration while also accepting two independent Keyphasor signals. This capability enables accurate tracking of shaft speed, vibration amplitude, and vibration phase information for high-speed rotating machinery.

Bently Nevada 126623-01 features an Aero GT I/O input impedance greater than 95 kΩ, while Velomitor sensor inputs provide an impedance of 3.5 MΩ. Typical power consumption is 7.7 watts. Designed for demanding industrial environments, the module operates from -30°C to +65°C (-22°F to +150°F) and can be stored between -40°C and +85°C (-40°F to +185°F). With support for buffered sensor outputs, short-circuit protection, SIL-related safety requirements, and external termination architecture, 126623-01 is widely used for aeroderivative gas turbine monitoring, industrial power generation, refining facilities, and natural gas transmission systems where machinery protection is essential.
Alternative Names
I26623-0I 126623-O1 12662301 176449-03 143490-01 126599-01 140471-01 140482-01
Technical notes
Engineered with an external termination (ET) architecture, the Bently Nevada 126623-01 significantly simplifies field wiring and enables zero-downtime hot swapping. It offers up to 4 independent monitoring channels combined with 2 Keyphasor inputs to guarantee continuous multi-point phase and velocity tracking.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Can 126623-01 work with multiple sensor channels?
Yes. Bently Nevada 126623-01 supports up to four independent acquisition channels, enabling monitoring of multiple measurement points on rotating equipment.
Does 126623-01 provide support for Velomitor sensors?
The module accepts Velomitor sensor inputs and offers a corresponding input impedance of 3.5 MΩ for reliable signal acquisition.
How much rack space does 126623-01 require?
Bently Nevada 126623-01 occupies one full-height front slot within the 3500 rack system.